From 6f88049caf56022c773272e03ddfa8cf79867059 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 2 Mar 2011 09:41:38 -0500
Subject: [PATCH] minix: i_nlink races in rename()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/minix/namei.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/fs/minix/namei.c b/fs/minix/namei.c
index ce7337ddfdbf..6e6777f1b4b2 100644
--- a/fs/minix/namei.c
+++ b/fs/minix/namei.c
@@ -213,7 +213,6 @@ static int minix_rename(struct inode * old_dir, struct dentry *old_dentry,
new_de = minix_find_entry(new_dentry, &new_page);
if (!new_de)
goto out_dir;
- inode_inc_link_count(old_inode);
minix_set_link(new_de, new_page, old_inode);
new_inode->i_ctime = CURRENT_TIME_SEC;
if (dir_de)
@@ -225,18 +224,15 @@ static int minix_rename(struct inode * old_dir, struct dentry *old_dentry,
if (new_dir->i_nlink >= info->s_link_max)
goto out_dir;
}
- inode_inc_link_count(old_inode);
err = minix_add_link(new_dentry, old_inode);
- if (err) {
- inode_dec_link_count(old_inode);
+ if (err)
goto out_dir;
- }
if (dir_de)
inode_inc_link_count(new_dir);
}
minix_delete_entry(old_de, old_page);
- inode_dec_link_count(old_inode);
+ mark_inode_dirty(old_inode);
if (dir_de) {
minix_set_link(dir_de, dir_page, new_dir);
--
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